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Document type:
Zeitschriftenaufsatz 
Author(s):
Blumenthal, R. S.; Tangirala, A. K.; Sujith, R.I.; Polifke, W. 
Title:
A systems perspective on non-normality in low-order thermoacoustic models: full norms, semi-norms and transient growth 
Abstract:
Non-normal transient growth of energy is a feature encountered in many physical systems. Its observation is intimately related to the norm used to describe the system dynamics. For a multi-physics problem such as thermoacoustics, where a heat source is in feedback with acoustic waves and a flow field, the appropriate metric is an ongoing matter of debate. Adopting a systemic perspective, it is argued in the present paper that an energy norm is, in principle, a matter of choice, but one that is c...    »
 
Keywords:
Non-normality, transient growth, energy norm, semi-norm, thermoacoustics 
Dewey Decimal Classification:
620 Ingenieurwissenschaften 
Journal title:
International Journal of Spray and Combustion Dynamics 
Year:
2017 
Journal volume:
Year / month:
2017-01 
Quarter:
1. Quartal 
Month:
Mar 
Journal issue:
Pages contribution:
19–43 
Covered by:
Scopus; Web of Science 
Reviewed:
ja 
Language:
en 
Fulltext / DOI:
Publisher:
SAGE Publications Inc. 
Status:
Verlagsversion / published 
TUM Institution:
Professur für Thermofluiddynamik 
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